A hipster who wears the ubiquitous winter hat lifted high enough on the head that the end resembles the reservoir tip of a condom. Sometimes, the end will droop down (especially popular these days), and the hipster's hat will then resemble the reservoir tip of a used condom.

Ex.1:
Hipster 1: "seriously, dude, does having your hat pulled up like that make any difference?"

Hipster 2: "Yeah dude, that looks pretty ghey."

Reservoir Tip-ster: *walks off to shakespeare class in shame*

Ex.2:
-"Look at those fools! How do their hats stay on?"
-"Socks man. A bunch of reservoir tipsters."
-"That one smells like PBR"